package com.example.demo.service;

import com.example.demo.entity.Notification;

import java.util.List;

public interface NotificationService {
    void addNotification(int user_id, String content);
    List<Notification> getNotificationsByUserId(int user_id);
    boolean markNotificationAsRead(int user_id, int notification_id);
    boolean addBulkNotification(List<Integer> user_ids, String content);
}